Patients with ovarian cancer often do not exhibit many symptoms in the early stages, and many do not have obvious symptoms initially. Some patients may experience pelvic pain due to tumor growth early on, primarily located in the bilateral pelvic area, with some experiencing pain that radiates to the perineal area. Some early-stage ovarian cancer patients may experience abnormalities in their menstrual cycle, primarily manifested as irregular menstruation, increased menstrual flow, and the presence of blood clots. Some patients may also experience abnormal vaginal bleeding outside of their menstrual period. In addition, some patients in the early stages may exhibit signs of abnormal hormone secretion. Aside from these, most early-stage ovarian cancer patients do not show obvious symptoms.